WE WISH ALL OUR FRIENDS AND FAMILIES A WONDERFUL HAPPY NEW YEAR !
December 24, 2010
The last 24 days have been spectacular in Minnesota. No rain, plenty of sunshine and above normal temperatures. However, the honey bees know that winter is around the corner, and they have been busy getting ready. The queen by now is laying fewer eggs, knowing that the food will be rationed for the next few months. Foragers are still going out and about collecting the little precious nectar left and the priceless pollen. This is also becoming a rarity as the flowers are mostly spent. Right now, the bees' activities are done later during the day than previously as the temperatures are lower in the morning, impeding them. However we can still see them hovering around flowers late morning and early afternoon. Then the honey bees seems sluggish again, and just walk around the hive, or fly nearby.
In a recent article which I read with interest : " Iridovirus and Micosporidian linked to Honey Bee Colony Decline" published October 6, 2010 in the Scientific Journal PLoS ONE; Scientists have found new 2 unreported RNA viruses in North America which live in honey bees. It could be a clue to the cause of CCD (colony collapse disorder), which in recent years have decimated the American honeybee population by 40% with no known scientific causes so far. Many causes have been suggested to the mysterious disappearance of bees while overwintering: viruses, parasites, fungi, pesticides, malnutrition and stress, in combination or not. Some ideas have been already refuted.
What is interesting to note is not only the IIV seems to be associated with the honey bee collapse, but paired with Nosema ( a common fungal bee disease which can be controlled) has been observed to be lethal to bees from samples taken from commercial apiaries across the USA. In comparison, the pathogen pairing was not observed in samples from colonies with no history of CCD. This important finding then could suggest that bees co-infected with those 2 pathogens at the same time is eminently more lethal to honey bees than either pathogen alone.